Shoe sole



V July 27,1926. 1,593,829

c..A. JoHNspN SHOE SOLE Filed July 16 1925 Patented July 27, 1926.

' UNITED srarss CHARLES A. JOHNSON, OF BODEGA, CALIFORNIA.

SHOE SOLE.

Application filed. July 16, 1925. Serial No. 43,940.

This invention relates to improvements in shoe soles, my principal object being to provide a sole which is light, very durable, flexible, water proof, and an almost perfect nonconductor of heat. cold and electricity.

My sole while light is quite thick, which prevents oils, acids or water from getting to the shoe.

The sole besides has inherent oil resisting properties and will not deteriorate when exposed to oil, grease or Water.

My sole is therefore particularly adapted for use by workers in canneries, laundries, tanneries, creameries, chemical works, oil refineries and any other places where the floor is apt to be wet with various liquids.

Another object of my invention is to provide a sole which while having the above stated water proof features, is air ventilated and will not sweat the feet as most compo sition soles do, and which cause numerous foot ailments to develop.

A further object is to provide a sole which may be marketed in a very few stock sizes, since it is capable of being trimmed down to fit different shapes and sizes of shoe. soles without preventing my sole from being properly attached to the shoe.

Many persons who have to work while standing on cement and other hard floors develop numerous aches and pains in the feet and legs from so doing. Those who, working under such conditions, have worn my soles, report a lack of any such aches and pains, or an almost immediate disappearance of the same. My sole is therefore especially adapted or use on cement floors, whether wet or dry.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claim.

In the drawings similar characters of reference indicate corresponding parts in the several views 2- Fig. 1 is a bottom plan View of my improved sole.

Fig. 2 is a side elevation of the same.

Fig. 3 is a longitudinal section thereof.

Fig. 4 is a fragmentary cross section on the line 44 of Fig. 1.

Fig. 5 is a fragmentary cross section ingredients. The sole is of uniform thickness throughout except at its rear end, where it is reduced in thickness from its outer face for a certain distance transversely to form a ledge 2.

The outer face of the main portion of the sole is deeply grooved at various places. One such groove 3 is disposed transversely of the sole a short distance from the ledge@ and extends from edge to edge of the sole. Another groove t extends longitudinally from the groove 3 to the tip of the sole and is disposed centrally of the shoe. The groove 4.- is intersected by a transverse groove 5 disposed intermediate groove 3 and the tip of the sole, said groove 5 also extending to the side edges of the sole. The grooves 4t and 5 are preferably cut up into a number of separated sections by webs 6 which are the same thickness as the sole. Other grooves 7 extend from the outer edge of the sole on 8 each side of the groove 4 at an angle thereto, the inner ends of the groove 7 being preferably separated from the other grooves.

These various grooves, whose location may be altered somewhat as may be desired, serve two main functions. They not only form air Vents allowing air to penetrate along the sole, but by lessening the thickness of the sole make the same more flexible than would otherwise be the case.

At various places between the grooves, the sole is provided with sockets 8 to receive non-skid plugs 9 of canvas or the like which extend to the outer surface of the sole.

The bottoms of the grooves, as well as the ledge 52, are provided with blind holes or sockets 10 at various intervals, while the bottoms of all the grooves are undercut on both sides as shown at 11.

The holes 10 are for the purpose of re ceiving screws 12 or the like by means of which my sole may be attached to the ordi nary sole 13 of a shoe. Such screws when being placed are pressed through the thin webs between the bottom of the holes 10 and the adjacent faces of the sole, which webs then close firmly around the screws, since the material ofthe sole is resilient or elastic. In thismanner the Water-tight feature of the sole is maintained. The reason for not punching all the holes all the way through at first or When the 'sole'is made is that-all holes may not be utilized and by making the holes blind the Water tightness of the sole is conserved regardless of the nonuse of any of the holes.

The under-cutsll of the grooves enable metal strips or washers 14- (see Fig. 5) to be inserted to form rigid abutments for the heads 15 of thescrews, which. would otherwise sink. into the sole and probably pull. through. the same.

The grooves are deep enough so that the screw heads are below the outer face of the sole, preventing contact of the heads with thefloor.

It will benoted that the non-skid plugs do not extend entirely through the sole. This is done purposely to avoid the decrease in resiliency which would otherwise be had. Also thesoleis maintained as a shock-absorbing member throughout its entire area.

As axresult of the various features of my sole as above described, my soles are truly messes health soles, giving relief and comfort to all who wear them From the foregoing description it will be readily seen that I have produced such a device" as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not .form a departure from the spirit ofthe invention, as defined by the appended claim;

Having thus'described my inventionwhat T claimv as new and usefuland desire to secure by Letters Patent is A shoe sole comprising a bodvmember,

having in its outer face a plurality of spaced and relatively deep grooves open .to the sides of the sole, the bottoms of'said grooves be ing provided with a plurality otholes extending toward the inner face of the body; the sides of. said grooves being undercut alongtheir bott0ms, and washer elements to extend across the grooves and lit in the undercut portions thereon In testimony whereofv I afix my signature.

CHARLES 'A. JOHNSON. 

